I have always considered instinctive shooting to mean that you don't use any part of the bow, arrow, your hand, finger, etc., as an aiming device. When you say "I am not really looking at the arrow, the tip or the angle..." you kind of enter a gray area, because "not really looking," is not the same thing as "not being aware of in any way."
Howard Hill was "aware" of the arrow in his field of vision, without using it as an aiming device. In other words, he didn't consciously set a gap. That's fine with me, and I'll take him at his word on that. To me that's still instinctive shooting. Others would say that if you're aware of the arrow, you can't help but use it as an aiming device.
Fred Asbell does not believe there should be any awareness of the arrow at all, and one of the main reasons he advocates the swing draw is to keep the arrow out of view for as long as possible. Fred is not one to split hairs and probably would not want to argue the point as to whether Hill's method was instinctive or not. But he does believe that we should focus all our attention on the target and lose any awareness we might have of things in our peripheral vision, to the extent possible.
As far as using different anchors, I don't think that has any relevance as to whether you're shooting instinctively or not, so long as you're not using an aiming device. When I haven't been regularly shooting at 50 yards, I find it helpful to shoot, instinctively, at an imaginary point about 3 feet above where I want to hit, which may be a similar thing.
However, if I shoot at 50 yards for a while, say 15-20 arrows, I find that my arrows begin to creep up toward my aiming point, so my "computer" is beginning to adjust to that range. After it adjusts, I just focus on the target I want to hit, the same as I do at 20 yards.
Your method may be better, because from your post your face walking does not appear to cause your mental computer to make an automatic correction like mine does when I shoot at a point above the target. What are your ideas on that?
Anyway, in my view if you're not using your arrow, etc., as an aiming system, I think you're shooting instinctively, although others may disagree. A whole other group of people would say, "who cares?" as long as you're shooting arrows and having fun.